253128097 has 2 divisors, whose sum is σ = 253128098. Its totient is φ = 253128096.

The previous prime is 253128067. The next prime is 253128103. The reversal of 253128097 is 790821352.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 244578321 + 8549776 = 15639^2 + 2924^2 .

It is a cyclic number.

It is not a de Polignac number, because 253128097 - 2¹⁹ = 252603809 is a prime.

It is not a weakly prime, because it can be changed into another prime (253128067) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126564048 + 126564049.

It is an arithmetic number, because the mean of its divisors is an integer number (126564049).

Almost surely, 2^253128097 is an apocalyptic number.

It is an amenable number.

253128097 is a deficient number, since it is larger than the sum of its proper divisors (1).

253128097 is an equidigital number, since it uses as much as digits as its factorization.

253128097 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 30240, while the sum is 37.

The square root of 253128097 is about 15909.9999057197. Note that the first 4 decimals coincide. The cubic root of 253128097 is about 632.5770788285.

It can be divided in two parts, 2531 and 28097, that added together give a triangular number (30628 = T₂₄₇).

The spelling of 253128097 in words is "two hundred fifty-three million, one hundred twenty-eight thousand, ninety-seven".